Display panel of a programmed computer system with a graphical user interface



FIG. 1 is a front view of a display panel of a programmed computer system with a graphical user interface; and,

FIG. 2 is a front view of a portion thereof, on an enlarged scale, for ease of illustration.

The broken line showing of a display panel is included for the purpose of illustrating environmental structure; the broken lines form no part of the claimed design.

The broken line showing of portions of the graphical user interface illustrate portions of the graphical user interface which form no part of the claimed design. 

CLAIM We claim the ornamental design for a display panel of a programmed computer system with a graphical user interface, as shown and described. 